基于单片机的保安报警控制器的毕业设计.doc

基于单片机的保安报警控制器的设计 [摘要] 随着社会的不断进步和科学技术、经济的不断发展，人们生活水平得到很大的提高，对私有财产的保护意识和生命安全意识在不断的增强，因而对防盗防火措施提出了新的要求。 本设计就是为了满足现代住宅防盗防火的需要而设计的小区电子防盗防火系统。 本毕业设计是利用单片机监控传感器信号来判断防火和防盗事件发生并做出相应的反应，以达到时刻预防意外发生并在意外发生时作出及时的补救措施。本设计包括硬件和软件设计两个部分。硬件部分包括单片机控制电路、数据扩展电路、驱动执行报警电路、LED控制电路和信号传输等部分组成。处理器采用51系列单片机AT89S51。整个系统是在系统软件控制下工作的。系统程序可以划分为以下几个模块：数据采集、键盘控制、报警和显示等子函数它由用户控制器、中间控制器、控制中心通过数据总线相连接构成；用户控制器由单片机、传感器探头、开关量输入电路、通讯接口电路、蜂鸣器电路、低压检测电路、红外收发电路、显示电路、电源电路连接构成；中间控制器由存储单元、单片机相连接构成。本设计可多功能报警外警、确保用户安全。信号监视部分，信号处理部分和补救实施部分。信号监视部分由于设计的要求，分为两个分离的小部分，一个用于防火的烟雾传感器，一个是用于防盗的红外线发生器和接收器。 [关键词] 防火防盗 单片机 数据采集 数据扩展 报警电路  MCU-based controller design for the security alarm [Abstract] With the progress of society and science and technology, economic development, peoples living standards have greatly improved the protection of private property and life safety awareness of awareness is growing stronger, and thus on the security measures put forward a new fire requirements. This design is to meet the needs of modern residential fire alarm designed residential electronic security fire protection systems. The graduation project is the use of SCM monitoring sensor signal to determine the fire and security incidents and respond accordingly to achieve the prevention of accidents and time of the accident to make timely remedial measures. The design includes two parts, hardware and software design. Hardware includes single chip control circuit, the data expansion circuit, driving the implementation of the alarm circuit, LED control circuit and signal transmission and other components. Processor with 51 computers AT89S51. The whole system is under the control of the system software to work. System program can be divided into the following modules: data acquisition, keyboard control, alarm and display sub-functions that the user controller, the middle of the controller, the control center is connected via data bus form; user control from the microcontroller, the sensor probe, switch input circuit, communication inter